27955395 has 64 divisors (see below), whose sum is σ = 56730240. Its totient is φ = 12939264.

The previous prime is 27955393. The next prime is 27955427. The reversal of 27955395 is 59355972.

27955395 is a `hidden beast` number, since 2 + 7 + 9 + 553 + 95 = 666.

It is not a de Polignac number, because 27955395 - 2¹ = 27955393 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 27955395.

It is not an unprimeable number, because it can be changed into a prime (27955393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29367 + ... + 30303.

It is an arithmetic number, because the mean of its divisors is an integer number (886410).

Almost surely, 2^27955395 is an apocalyptic number.

27955395 is an abundant number, since it is smaller than the sum of its proper divisors (28774845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27955395 is a wasteful number, since it uses less digits than its factorization.

27955395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 975 counting only the distinct ones).

The product of its digits is 425250, while the sum is 45.

The square root of 27955395 is about 5287.2861658889. The cubic root of 27955395 is about 303.4975649985.

The spelling of 27955395 in words is "twenty-seven million, nine hundred fifty-five thousand, three hundred ninety-five".